/Engine/Source/Editor/Sequencer/Public/ISequencer.h
Attempts to add a new spawnable to the MovieScene for the specified object (asset, class or actor instance)
The spawnable guid for the spawnable, or an invalid Guid if we were not able to create a spawnable
[FGuid](API\Runtime\Core\Misc\FGuid) MakeNewSpawnable ( [UObject](API\Runtime\CoreUObject\UObject\UObject) & SourceObject, [UActorFactory](API\Editor\UnrealEd\ActorFactories\UActorFactory) * ActorFactory, bool bSetupDefaults )